default-policy-callback-arguments.html

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This WPT test may be referenced by the following Test IDs:
- /trusted-types/default-policy-callback-arguments.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<head>

  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

  <meta http-equiv="Content-Security-Policy"

        content="require-trusted-types-for 'script'">

</head>

<body>

  <div id="log"></div>

  <div id="div"></div>

  <script id="script"></script>

  <script>

    var current_case = undefined;

    function checker(...args) {

      assert_equals(args.length, 3);

      assert_true(current_case && current_case.length == 4);

      assert_equals(args[0], current_case[0], "Expecting the value.");

      assert_equals(args[1], current_case[1], "Expecting the type name.");

      assert_equals(args[2], current_case[2], "Expecting the sink name.");

      switch (args[1]) {

        case TrustedScriptURL:

          assert_equals(args[2], 'HTMLScriptElement src');

          break;

        case TrustedHTML:

          assert_equals(args[2], 'Element innerHTML');

          break;

        case TrustedScript:

          assert_equals(args[2], 'HTMLScriptElement text');

          break;

      return args[0];

    trustedTypes.createPolicy("default", {

      createHTML: checker,

      createScript: checker,

      createScriptURL: checker

});

    const div = document.getElementById("div");

    const script = document.getElementById("script");

    const cases = [

      [ "abc", "TrustedHTML", "Element innerHTML",

          _ => div.innerHTML = "abc" ],

      [ "2+2", "TrustedScript", "HTMLScriptElement textContent",

          _ => script.textContent = "2+2" ],

      [ "about:blank", "TrustedScriptURL", "HTMLScriptElement src",

          _ => script.src = "about:blank" ],

      [ "2+2", "TrustedScript", "eval", _ => eval("2+2") ],

      [ "(function anonymous(\n) {\nreturn 2+2\n})", "TrustedScript",

        "Function", _ => new Function("return 2+2") ],

];

    for (var tc of cases) {

      test(t => {

        current_case = tc;

        tc[3]();

      }, `Test callback arguments, case ${tc[2]}`);

  </script>

</body>